Pipe-ring cutter.



H. E. STRATTON.

PIPE RING CUTTER.

APPLICATION FILED JULY3,1912.

1,100,083. Patented June 16,1914.

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H. E. STRATTON.

PIPE RING CUTTER. APPLIOATIONPILEI)JULY3,1912'.

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Patented June 16, 1914.

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HARPER E. STRATTON, OF EMPIRE, OHIO.

PIPE-RING CUTTER.

Specification of Letters Patent. Patented June 16, 1914.

Application filed July 3, 1912. Serial No. 707,465.

To all whom it may concern Be it known that I, HARPER E. STRATTON, acitizen of the United States of America, and. resident of Empire, countyof Jefferson, and State of Ohio, haveinvented certain new and usefulImprovements in Pipe-Ring Cutters, of which the following is aspecification.

This invention relates to devices for out ting supporting rings forsewer pipe, drain tile, reproofing, and like clay products, and it hasfor its object to provide a simple apparatus whereby the rings employedduring firing in the kiln for supporting hollow .or tubular articlesformed of cla may be c111 evenly, accurately and expeditlously.

A further object is to provide a device of the character mentionedhaving interchangeable pipe-receiving plates, adapting the mechanism forcutting rings of widely varying sizes. I

WVith these and other objects in View, the invention resides in thefeatures of construction, arrangement of parts and combinations ofelements which will hereinafter be fully described, reference being hadto the accompanying drawings, forming a part of this specification, inwhich Figure 1 is a top plan view of the invention; Fig. 2 is alongitudinal section on the line 2-2, Fig. 1; Fig. 3 is a cross-sectionon the line 33, Fig. 1; Fig. 4 is a partial horizontal section on theline 44, Fig. 2; and Fig. 5 is a longitudinal section on the line 5 5,Fig. 1, some of the parts being shown broken.

Referring to said drawings, in which like designating charactersdistinguish like parts throughout the several views-1 indicates the sidemembers of a substantially rectangular main supporting frame which issupported at a suitable height, as by legs 2. Located adjacent to oneend of said frame and having their ends supported by said side membersare two transversely disposed crossmembers 3, and mounted on saidcross-members are two longitudinally extending bars 4, a rectangularopen space being thus defined by the members 3 and bars 1. The opposingfaces of said bars 4; are mortised longitudr nally to form channels orguideways 5 for the side-members 6 of a longitudinally reciprocatingframe 7, the purpose of which will presently be explained. Inwardlydirected flanges 8 are provided on the inner faces of said bars 4 belowthe guideways 5, said flanges constituting supporting ledges for theopposite edges of a plate 9 which has thereina centrally located openingof a size adapted for receiving a pipe 10 therein. Supported inoverlying relation to said plate 9, as by outwardly directed lateralflanges 11 resting upon the upper faces ofthe bars 4, 1s a plate 12,also having a centrally located opening adapted for receiving a pipe 10.The adjacent faces of the plates 9 and 12 do not engage, being separatedby a space sufficiently large to permit of the passage therebetween of afine pipe-cutting wire 13 which is stretched across from one side member6 of the reciprocating frame 7 to the other, said wire preferably havinga diagonal disposition, as shown.

In order to adapt the machine for cutting rings from pipes 10 of varyingsizes, a plurality of plates 9 and 12 having pipe-receiving openings ofvarying sizes are provided to be used interchangeably. For facilitatingthe ready removal of said plates when required, the same are notpermanently fixed in position. Properly positioned plate-engaging stops14 are fixed on the flanges 8 whereby the placing of the plate 9 inposition is facilitated. For facilitating the mounting of plate 12,fixed lugs or clamps 15 are provided to be engaged by one end of saidplate, and rotary lugs or clamps 16 are provided for engaging theopposite end thereof, said rotary clamps being adapted for adjustmentafter the plate has been mounted in position.

The lower end of a pipe 10 mounted in position to be cut into ringsrests upon a vertically movable table 17 which is supported at oppositesides by vertical bars 18 and 19 which constitute the side members of arectangular frame which is suspended at one end of a cable 20 and whichis vertically movable, said side members having sliding movement inguide-channels 21 provided in upright supports 22 mounted on the mainsupporting frame. A cross-bar 23 mounted on said supports 22 has one endextended and carries suitably arranged pulleys, as 24 and 25, over whichthe cable 20 operates, the free end of said cable carrying a weight 26which serves to partially counterbalance the weight of the table 17 thesuspended frame, and a pipe mounted on said table. Journaled in suitablebearings located on the main supporting frame is a transversely directedshaft 27 having an operating crank 28 at one end and having at its otherend a crank 29 connected by a pitman 30 to an end of the reciprocatingframe 7, whereby rotary movement of the shaft imparts a reciprocatingmovement to said frame for carrying the cutting wire 13 back and forththrough the space between the plates 9 and 12 for severing the pipe 10which is held in position and guided by said plates. For guiding saidcutting wire to proper cutting position so that the pipe may be cut intorings of even length, the adjacent faces of the plates 9 and 12 areinclined into a slightly conical form, substantially as shown in Figs.2, 3 and 4.

The upright bar 18 has a seriesof rackbar teeth 31 formed on its frontface and a like series on its rear face, the teeth of one seriesalternating with, or having staggered relation to, those of the other. Ayokeshaped plate 32 is slidably mounted upon the side member 1 and hasoppositely disposed dogs or detents 33 which, upon reciprocation of saidplate, are adapted to alternately assume interlocking supportingengagement with teeth 31 of the opposite series. An eccentric rod 3 isattached to one end of said plate 32 and has its opposite end fixed tothe sheave'35 of an eccentric 36 carried by the shaft 27, wherebyreciprocating movement is communicated to said plate. Thus, it will beapparent that, as the severance of the pipe 10 is accomplished with thereciprocations of the frame 7 the reciprocating of the plate 32 iseffected, withdrawing one of the detents from supporting engagement witha tooth 31, allowing the table 17 carrying the pipe 10 to drop until the3 next above tooth of the opposite series is engaged by the oppositedetent, said teeth bebeginning of the cutting operation.

ing so spaced that the distance of each drop of the table is the widthdesired for the rings to be cut from the pipe.

It will of course be understood that the pipe 10 to be cut into rings isin its plastic, or green, state, and that the table 17 is elevated toits highest position prior to the The table is lowered a definitedistance after each forward and backward reciprocation of the cutter sothat when. the pipe has been fully disposed of, the table occupies alowered position, with the rings in superposed relation, from whichposition said rings may be readily removed.

The ringsformed in the manner hereinbefore described are cut squarelyand are of regular, even size, as will be readily understood.

It is obvious that various changes within ings therein, a longitudinallyreciprocating frame, a pipe-cutting element carried by said frame andadapted to be moved back and forth between said plates with successiyereciprocations of said frame, means for reciprocating said frame, apipe-supporting table located beneath said plates, a vertically movablebar disposed in supporting relation to said table, said bar having aseries of spaced teeth 011 each of two opposite faces thereof, aneccentric rod connected to and actuated by said reciprocating means, anda movable yoke-shaped plate connected to said rod and having oppositelydisposed detents adapted, upon reciprocation of said rod, to alternatelyassume interlocking engagement with teeth of the opposite series.

2. A device of the character described, comprising a pair ofpipe-embracing plates, one superposed over the other at a spaceddistance therefrom, and constituting guides, the adjacent faces of saidplates being slightly conical; a pipe-cutting element, an operatingshaft, means interposed between said shaft and said element wherebyrotation of the former effects reciprocation of the latter between theconical faces of said plates, a pipe-supporting table located beneathsaid plates, a vertically movable bar disposed in supporting relation tosaid table, said bar having a series of spaced teeth on each of twoopposite sides thereof, a yoke-shaped plate having oppositely disposeddetents for alternately and successively interlocking with teeth of theop posite series, and means interposed between the operating shaft andthe last-mentioned plate whereby the latter is reciprocated after eachreciprocating stroke of the cutting element.

In testimony whereof, I aflix my signature in presence of twosubscribing witnesses.

HARPER E. STRATTON. Witnesses ADDIE T. VAN TILBURG, A. R. MCLEAN.

Copies. of this patent may be obtained for five cents each, byaddressing the Commissioner of Patents, Washington, D. G.

